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1// This file is part of OpenCV project.
2// It is subject to the license terms in the LICENSE file found in the top-level directory
3// of this distribution and at http://opencv.org/license.html.
4
5// Copyright (C) 2014, Itseez, Inc., all rights reserved.
6// Third party copyrights are property of their respective owners.
7
8#if cn != 3
9#define loadpix(addr) *(__global const T *)(addr)
10#define storepix(val, addr)  *(__global T *)(addr) = val
11#define TSIZE (int)sizeof(T)
12#else
13#define loadpix(addr) vload3(0, (__global const T1 *)(addr))
14#define storepix(val, addr) vstore3(val, 0, (__global T1 *)(addr))
15#define TSIZE ((int)sizeof(T1)*3)
16#endif
17
18__kernel void repeat(__global const uchar * srcptr, int src_step, int src_offset, int src_rows, int src_cols,
19                     __global uchar * dstptr, int dst_step, int dst_offset)
20{
21    int x = get_global_id(0);
22    int y0 = get_global_id(1) * rowsPerWI;
23
24    if (x < src_cols)
25    {
26        int src_index = mad24(y0, src_step, mad24(x, (int)sizeof(T), src_offset));
27        int dst_index0 = mad24(y0, dst_step, mad24(x, (int)sizeof(T), dst_offset));
28
29        for (int y = y0, y1 = min(src_rows, y0 + rowsPerWI); y < y1; ++y, src_index += src_step, dst_index0 += dst_step)
30        {
31            T srcelem = loadpix(srcptr + src_index);
32
33            #pragma unroll
34            for (int ey = 0; ey < ny; ++ey)
35            {
36                int dst_index = mad24(ey * src_rows, dst_step, dst_index0);
37
38                #pragma unroll
39                for (int ex = 0; ex < nx; ++ex)
40                {
41                    storepix(srcelem, dstptr + dst_index);
42                    dst_index = mad24(src_cols, (int)sizeof(T), dst_index);
43                }
44            }
45        }
46    }
47}
48